Pre-sedimentation concentration reuse tank and its treatment process

Abstract

The invention discloses a pre-sedimentation condensation recycling pool. The pool body is provided with a central water distribution bucket with water distribution holes; the central water distribution bucket is connected with a water inlet pipe arranged at the bottom of the pool body; the upper edge of the pool body is provided with a water outlet groove and a weir plate matched with the groove; the water outlet groove is connected with a subsequent sedimentation tank through a water outlet pipe; a concentrated mud scraper is arranged in the pool body, the bottom of the pool body is provided with a mud discharge bucket; a sand outlet pipe at the bottom of the pool body is connected with the mud discharge bucket; a water pump is arranged in a mud pump house; the inlet pipeline of the water pump through a sand pumping pipe is connected with the upstream of the sand outlet pipe; an outlet pipeline of the water pump is connected with the downstream of the sand outlet pipe through the sand discharge pipe; the inlet pipeline of the water pump through a mud suction pipe is connected with the water inlet pipe; and the water outlet pipeline of the water pump is connected with a mud discharge pipe. The invention has the advantage that the pool can meet the conditions of different raw water and operation requirements, and the raw water pre sedimentation treatment and mud discharge water condensation treatment process are combined to adapt to seasonal high turbidity and usual low turbidity conditions, so as to efficiently use structure processing capability to save area structure, and realize the combination of water purification process and production wastewater treatment process.

Description

technical field [0001] The invention relates to a new type of pretreatment pool involved in water supply and drainage engineering, in particular to a pretreatment pool used in tap water plants with high turbidity raw water. For high turbidity raw water, the raw water pre-sedimentation and sludge concentration treatment are combined to realize the high turbidity raw water through the pre-sedimentation process to reduce the burden of the subsequent sedimentation process, and at the same time realize the concentration of production sludge and the reuse of sludge water. New pool type. Background technique [0002] The influent water of urban waterworks contains a variety of impurities. Surface water sources are susceptible to changes in flow and water temperature during seasonal changes, resulting in a sharp increase in short-term turbidity. Wastewater is discharged from the process as a by-product of production, which puts a lot of pressure on the surrounding environment and b...

AI Technical Summary

Problems solved by technology

The main disadvantage of the above-mentioned technology is that when the raw water of the waterworks shows continuous low turbidity after the high turbidity water passes, the pre-sedimentation process cannot play a role in the treatment process, and the discharge time of production wastewater is generally concentrated, and the treatment structure occupies a relatively small area. Large, high operating costs, and the concentrated supernatant is often difficult to meet the discharge standards, which has become a technical problem in the treatment of seasonal high turbidity raw water

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